I made this simple job that should be triggered only for tag created on test branch.

deploy_job:
stage: manual_deploy
script:
  - echo "Deploying the project...!!!"
rules:
  - if: '$CI_COMMIT_TAG && $CI_COMMIT_REF_NAME == "test"'
when: manual  # This makes the job manual

but when I create the tag by Gitlab UI , and I print the value of $CI_COMMIT_TAG it is empty and the job does not trigger.